. >> the director of ucsf's program on reproductive health and the environment. >> so there is a developing fetus is dependent on maternal levels so if the mom has decreased levels, then that means fetus is going to be getting less hormone autos at this point there is no cause for panic. >> the lead author of the study says it's important to remember it's the first of its kind and results need to be confirmed. >> i won't say this is alarming but these hormones as i said are very important for development. >> and says the main source of exposure is canned food and use of hard, clear plastic. and in july, california banned bpa in baby bottles and sippy cups but can be found in canned baby form la. they will take a look at the children in the study. >> we've looked and we're in the process of looking at potential relationship with outcome like obesity and brain development. and saying the bulk is saying bpa is safe as used now and says the speculation sit linked to health affects is not supported by data. >> and okay, thank you. >> and coming up, settlement allowing google's library to move fo